Package org.apache.commons.collections.functors

Class MapTransformer

  • All Implemented Interfaces:
    java.io.Serializable, Transformer
    @Deprecated(since="2021-04-30")
public final class MapTransformer
extends java.lang.Object
implements Transformer, java.io.Serializable
    Deprecated.
    Commons Collections 3 is in maintenance mode. Commons Collections 4 should be used instead.
    Transformer implementation that returns the value held in a specified map using the input parameter as a key.
    Since:
    Commons Collections 3.0
    See Also:
    Serialized Form

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      static Transformer getInstance​(java.util.Map map)
      Deprecated.
      Factory to create the transformer.
      java.util.Map getMap()
      Deprecated.
      Gets the map to lookup in.
      java.lang.Object transform​(java.lang.Object input)
      Deprecated.
      Transforms the input to result by looking it up in a Map.

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • getInstance

        public static Transformer getInstance​(java.util.Map map)
        Deprecated.
        Factory to create the transformer.

        If the map is null, a transformer that always returns null is returned.

        Parameters:
        map - the map, not cloned
        Returns:
        the transformer

      • transform

        public java.lang.Object transform​(java.lang.Object input)
        Deprecated.
        Transforms the input to result by looking it up in a Map.
        Specified by:
        transform in interface Transformer
        Parameters:
        input - the input object to transform
        Returns:
        the transformed result

      • getMap

        public java.util.Map getMap()
        Deprecated.
        Gets the map to lookup in.
        Returns:
        the map
        Since:
        Commons Collections 3.1